کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7724910 1497836 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Highly disordered hard carbon derived from skimmed cotton as a high-performance anode material for potassium-ion batteries
ترجمه فارسی عنوان
کربن سخت بسیار ناراحت شده از پنبه ناخالص به عنوان یک ماده آنودایز با عملکرد بالا برای باتری های پتاسیم-یون
کلمات کلیدی
ذخیره سازی پتاسیم، نرخ عملکرد آنود، پنبه، سلول کامل،
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
Potassium-ion batteries attract tremendous attention for large scale application due to the abundance of K resources. Herein, a highly disordered hard carbon derived from a skimmed cotton is investigated for this purpose. The study shows that a simple soaking treatment in hydrochloric acid for the skimmed cotton before its high-temperature carbonization can critically impact the structure and the electrochemical properties of the obtained hard carbon significantly. This hard carbon exhibits a high initial coulombic efficiency (73%) and superior cycling stability and rate capability (253 mAh g−1 and 165 mAh g−1 at 40 mA g−1 and 4000 mA g−1, respectively) due to its unique porous architecture and large surface area. The full cell by coupling the hard carbon with a cathode material, i.e. potassium-rich iron hexacyanoferrate shows an outstanding electrochemical performance. These promising properties highlight the potentials of such a hard carbon in practical applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 396, 31 August 2018, Pages 533-541
نویسندگان
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